Computing-scale.



No. 808,516. PATENTED DEC. 26, 1905.

M. A. 1325s COMPUTING SCALE.

APPLICATION FILED SEPT.11, 1901.

5 SHEETS-SHEET 2.

No. 808,516. PATENTED DEG.26,1905. M. A. DEBS.

COMPUTING SCALE.

APPLICATION FILED SEPT.11, 1901.

5 SHEETS-SHEET 3.

No- 808,516. PATENTED DEC. 26, 1905. M. A. DEBS.

COMPUTING SCALE.

APPLICATION FILED SEPT.11. 1901.

5 SHEETS-SHEET 4.

3I"i21".'931'7dd200500" I 55 I 90 6i I I i 'aIVJ No. 808,516. PATENTEDDB0. 26, 1905. M, A. DEBS.

COMPUTING SCALE.

APPLICATION FILED SEPTJI. 1901.

5 SHBETS-SHEET 5.

awaewroz w? 3% WM,

5 the spur-wheel of the second shaft.

. new and usefullmprovements in Computing- PATENT OFFICE.

MARK A. DEES, OF ST. LOUIS, MISSOURI.

COM PUTlNG-SCALE.

Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed September 11,1901. Serial No. 75,063.

To all whom it may concern/.-

Beitknown that I, MARK A. DEES, a citizen of the United States, residingat St. Louis,in the State of Missouri, have invented certain Scales, ofwhich the following is a speci[ica tion, reference being had to theaccompany ing drawings and to the numerals of reference marked thereon.

My invention relates to improvements in computing-scales of the beamclass, indicating and computing automatically the weight of themerchandise or article sold and the sum to be charged therefor, and moreespeciallyto improvements upon the inventions described in twoapplications, Serial Nos. 34,793 and 60,214, filed by me, respectively,October 29, 1900, and lVlay 14, 1901.

My present invention is designed to provide a finer division of weightsand values and otherwise more fully amplify the weighing and computingfunctions of such scales as are described in-my aforesaid applications,and thus adapt them to a wider and more general field of usefulness.

The present improvement, while applicable to such scales as arecontemplated in the above mentioned applications, is equally adapted toother approved scales of the same general class.

It will be understood that in my present invention and in thosedescribed in applications Serial Nos. 34,793 and 60,214 many leadingmembers or elements are commonly found, the general constructions andoperations, except in particulars hereinafter pointedout, being,however, more in accordance with what is described in the later of thetwo said applications. Thus in the present case each member of thecombined scale-beam, consisting of a main and a tare beam, is providedwith a poise, that on the tare-beam being furnished with a catch forengaging or locking with its beam at specified points. There is alsoemployed a shaft carrying aspurwheel and a bevel wheel, together with arack adapted to constantly engage the spurwheel, and a connectionbetween the rack and the poise on the main beam, also a second shaftcarrying a bevel and a spur wheel, the former engaging the bevel-wheelon the said first shaft, the whole being combined with a rotarycomputing mechanism independent of the scale-beam and geared to properlyengage Means I are also furnished whereby the poise of the l main beammay be slid or moved upon said beam and the computing mechanismsimultaneously rotated, all as fully and specifically set forth in myformer applications.

In order that the general similarity in many essential respects betweenmy herein described invention and that of application Serial No. 60,214may be seen, comparison is invited to Figs. 1 and 2 of this case andFigs. 1 to 6 of my said former application.

A special feature of improvement entering into the present case is theincorporation with the scale-beam of what I term a small money-weightcylinder having an annular poise, a function of said cylinder and poisebeing to permit the selling of a certain small weighed quantity ofmaterial at a certain high price. It is to be understood that the smallmoney-weight cylinder is primarily used in weighing and computing smallfractions up to one pound, or otherwise, in accord ance with itsconstruction. By sliding the annular poise to the graduation on the rowof figures representing the number of ounces and fractions thereof thevalue of that quantity of material placed on the upper platform will beindicated in the row of figures showing the price per pound of saidarticle. The quantity of material by weight having a known value perpound which may be bought for a certain sum of money is as readilyascertained by moving the poise to the graduation marking the moneysworth required in the price-per-pound row. The quantity by weight canthen be seen on the row representing ounces. It will further beunderstood that the small money weight cylinder is used in connectionwith other cylinders acting upon the same principle, and its capacityfor such use and the several novel and useful functions of said smallcylinder, both as an adjunct to the scale proper and as a deviceoperatively independent thereof, will be fully hereinafter described.

Other novel and valuable features and combinations are hereinafterdescribed, and more particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is afront elevation of myinvention, showing the poise of the tare-beam at twenty-five pounds andthe poise of the main or weight beam adjusted for twenty pounds. Fig. 2is a vertical transverse section through the longitudinal center of theframe, lower platform, computing-cylinders, and the casing andillustrating other details of improvements hereinafter descale-beam.

scribed. Fig. 2 is an end view of the cylindrical casing and the gearsfor turning the eomputing-cylinders. Fig. 3 is a plan view of the entirescale-beam, comprising the tare and weight beams and the smallmoney-weight cylinder, as also other details hereinafter referred to.Fig. 4 is a longitudinal sectional view through the small money-weightcylinder. Fig. 5 is a front end view of the annular poise used inconnection with the small money-weight cylinder. Fig. 6 is a side viewof the same. Fig. 7 is an extended or stretched-out view of the chartused with the small money-weight cylinder. Fig. 8 is a smaller View of achart used in connection with the larger moneyweight computing cylinder1 seen in Fig. 2. Fig. 9 represents a scale graduated for prices; andFig. 10 an adjustable straight edge along which the fixed price-scale,Fig. 9, is used.

Similar numerals of reference indicate similar parts in the severalviews.

Referring particularly to Figs. 1 and 2, 1 is the base or foundationhaving the upper platform 2' and the lower one,3. 4 is the main beamhaving a poise 5 (in the present and both of my said preceding cases) ofone pound, and 1 is the tare-beam, having in this case a poise 5" doublethe weight of poise 5. The main and tare beams stand in parallelrelation to each other; but the tarebeam, as shown, is in a higherhorizontal plane than that occupied by the main beam. Both beams, theybeing rigidly attached together, are mounted or have their fulcra inbrackets 6 of the standard 7 and provided with appropriate unions withthe platform hanging connections, which need not here be moreparticularly referred to. The small money-weight cylinder (whichhereinafter, however, will be termed the small cylinder) is representedby 8, its axle 9 being rigidly secured to the fulcrum-head. of the Theannular poise is shown by 13. The chart Fig. 7, used with the smallcylinder 8, is in the present instance adapted to weigh up to one pound,a pound being divided into sixteen ounces and the ounces into fourths,the fractions of pounds being arranged longitudinally on the,cylind er.The

- vertical column of figures on the right of the chart Fig. 7, runningfrom seventeen cents to one dollar, represents the price per pound, andthe horizontal figures on the top edge, bottom, and near the middle,running from five cents to one dollar, five cents to seventeen cents,and five cents to fortyseven and onehalf cents, respectively, representvalues of goods at one dollar, seventeen cents,and fortyseven andone-half cents per pound, respectively.

1n illustration of the use of the chart, Fig. 7, let the row of figuresrunning longitudinally thereof, ranging from five cents to fortysevenand one-half cents, be taken. Thus if a buyer should wish. to purchasetwentyseven cents worth of goods the price of which 18 forty-seven andone-half cents per pound i the annular poise upon the small cylinderwould be run upon said cylinder to the mark indicated by a star, whichwould show that he would get about nine ounces of the material, thepoise also carrying the price per pound registering with the figure 9 onthe row of figures indicatingfractions of a pound. This amount ofmaterial would then be weighed upon the upper platform, the ordinaryweightqpoise of the main beam having been placed at zero and thetare-poise also run back to Zero or properly placed for the tare-weight,if any. It will be understood that in ordinary usage all weights overone pound would be weighed and computed on the larger cylinder 1, yet tobe particularly described. The columns of figures ranging from 34 to 200and 51 to 3300, re spectively, on the right-hand side of the chart, Fig.7, may be used to enable the seller to determine the price of two orthree pounds at the price indicated upon the row of figures ranging from17 to 100 upon the chart. Thus, for example, two pounds of a commodityworth forty-seven and one-half cents per pound would, as shown, costninety-live cents, and three pounds one dollar and fortytwo and one-halfcents, and, as seen at the bottom of the chart, two pounds at seventeencents would be worth thirty-four and three pounds fifty-one cents. In.weighing and dc termining mentally the price of two pounds thetare-poise is moved out to one pound, after which the annular poise onthe small cylinder is run to the one-pound limit, by which means the twopounds are obtained. ln weighing and mentally computing the price ofthree pounds the tare-poise is placed at two pounds and the annularpoise run out to the limit; but it is to be distinctly understood thatthe preferred way of weighing and computing over one pound is to resortto the larger cylinder 1, said cylinder 1 and the small cylinder bothusing the upper platform, yet in the sale of high-priced articles orwhere a very sensitive and accurate weight is needed whole pounds may beweighed and computed on said cylinder 1 and whatever fraction. orfractions of the pound there may be may be weighed and computed upon thesmall cylinder and the two sums added together. W'hile the smallcylinder may thus be used as an adjunct to said cylinder 1, it can alsobe used in the weighing of the fractions of the last pound (on the largeor lower platform) when either cylinder 2, 3, or f is used; but in theuse of the small cylinder with either of said cylinders 2, 3, or 4 eachunit on the small cylinder would necessarily be multiplied by four, asthe two ')latforms employed are as four is to one. It is further to bedistinctly understood that while the small IIO cylinder is adapted tothe various functions hereinb efore described it may be used withoutarticles of high price, as teas, spices, coffee,

&c. It is to be remembered, however, that the charts and systems ofcomputations here illustratively given are not arbitrary nor affeet themere mechanical features and combinations entering into my invention.

Referring to Figs. 3 and 4, the small cylinder 8 is mounted upon an axle9, fixed to a lug 10, depending from the lower part of the beam orfulcrum head 10" at or under its fulcrum. The small cylinder 8 has twoheads 8 and 8*, each of which is bored to fit over the axle 9, the headsbeing tied together by screw-rods 1 1, the barrel of the cylinder beingconfined between the heads and bearing the chart, Fig. 7. The axle 9 issecured (see the left-hand side of Fig. 4) to the lug 10 above mentionedby means of a set-screw 12. The axle is then held tightly in the lug, orsaid axle may be adjusted longitudinally in the event of the binding ofthe cylinder, wear, &c. The screw tie-rods 11 also serve as longitudinalguides and supports to the annular poise 13, (see Figs. 4, 5, and 6,)the internal diameter .of the poise being slightly greater than theexterior diameter of the cylinder, so as to prevent damage to thefiguring upon the surrounding chart by friction, &c. The small cylinder8 is adapted to revolve or turn upon its axis in order that the pricesand values may be brought in full view of the operator and also turnedso as to be seen by the purchaser.

The scale-beams as shown particularly in Fig. 3 are substantially thesame as shown in my aforesaid applications, except that the smallmoney-weight cylinder 8 and its accompanying parts are added. Theannular poise 13, as seen especially in Fig. 6, bears upon its faceprices per pound, the prices ranging from 17 to 100, thus correspendingwith the column of price-per-pound figures near the right of Fig. 7. Infurther illustration of the poise 13 in connection with the chart, Fig.7, encircling the small cylinder 8 let it be supposed a purchaser wishesto obtain twenty-six cents worth of butter at thirty cents per pound.The poise 13, with the figure 30 arranged to stand outward or in frontof the seller is to be slipped along the cylinder until the figure 26 isreached, when it will be indicated that about thirteen and one-halfounces of butter are to be sold for that sum. (See the double star, Fig.7.) This amount of butter is placed upon the small platform, weighed,and given to the customer. The small cylinder 8 is, as before indicated,in fact a supplemental scale-beam, and as its poise is moved or adjustedon the cylinder it may be used to weigh an unknown quantity of goodsplaced on the upper platform or set the scale to ascertain the value ofa known weight the price per pound of which is determined or to indicatethe weight of substances of known value weighing one pound or less, and,as hereinbefore shown, by the combined use of the small cylinder 8 andthe cylinder 1 a greater amount may be weighed and the smallest fractionof the last pound accurately shown. As the price-perpound numbersarranged around the poise 13 agree with the price-per-pound figures nearthe right-hand column or circle on the chart, Fig. 7, not only is thereweighed or made ready to be weighed a commodity of which the price perpound is known, but the buyer is, and the seller may be, informedexactly how much of the commodity at a given price per pound can bebought for a specified sum, for after the operator has seen the weightand value he may by turning the small cylinder to the purchaser enablethe latter to be also informed. The extreme right-hand columns or ringsof figures on the chart, as already described, are double and treble inamount the priceperpound figures on the row or circle of figures on thepoise and near the end of the chart. The limit of movement of the poise(see Fig. 1) is to the double line on the chart, which indicates a fullpound. Thus, if the purchaser wishes to buy twenty-seven cents worth oftea at seventy-five cents per pound the poise 13 would be slipped to theleft from the position in which it is seen in Fig. 1 to the star nearthe figure 25, when by turning the cylinder so as to bring theweight-column to the proper place the num ber of ounces will be found atthe operative edge of the poisein this case about six ounces. Thisfeature of my invention, therefore, permits of the ready computation ofhigh prices and low weights without resorting to the subdivisions of thelarger charts yet (for purposes of illustration) to be referred to. 1twill be understood that the said charts last referred to are used inconnection with the two pairs of geared cylinders,(indicated by thenumerals 1, 2, 3, and 4, which are looked as a series at all times whennot connected with the poise-operating device of the main beam and thatwhile one pair is always geared together only one cylinder of the pairis designed to be used for computing at one time. These cylinders arenot necessarily to be released from the poise when the small cylinder 8is used. Ordinarily they would not be released, for at any time it maybe desired to use the small cylinder 8 in conjunction with thecylinder 1. One cylinder of one pair may be employed to compute valuesof low weight for the upper or smaller platform and the other one of thepair to compute values of greater weight for the lower or main platform.(Only cylinder 1 is used for the upper or small platform.)

The computing-cylinders 1, 2, 3, and 4 are revolved on their axes by themechanism illustrated in Figs. 1, 2, and 2. In bearings on a standard20, secured to the foundation 1, is mounted a cross-shaft 21, carryingtwo gear-wheels 22 and 23, the latter being a bevelgear which may beengaged at certain times with a similar gear 24 on a longitudinal shaft25. The gear 22 operates a rack-bar 9, placed above it and connected tothe poise 5 on the main beam. The opposite end of the .shaft 25 isprovided. with a hand-wheel 27 and a gear-wheel 26. The shafts of theinternal computing-rolls 1, 2, 3, and 4 extend through the cylindricalcasing at one end and are there provided with gears 28, 29, 30, and 3]each of which may be placed in mesh with the gear 26. The gears 28 and29 are permanently in engagement with each other, as are gears 30 and31, by which arrangement the computing-cylinders 1 and 2 turnsimultaneously, as do 3 and 4,when the gear 20 is in engagement witheither gear 30 or 31.

As fully explained in my aforesaid application, Serial No. 60,214, whilethe upper and lower platforms are not intended to be used together, thecylinders of the pair being geared together so as to rotatesimultaneously, either platform may be used, one for lighter and theother for heavier weights. Provision is also made for the use of therotatable casing containing the rotatable computing-cylinders as acomputing device for still heavier weights.

Having thus briefly alluded to the internal computing-cylinders, I willnow proceed to describe a chart adapted for use with cylinder 1 of theseries, and while I have only illustrated, Fig. 8, one chart anddescribed it as adapted. for use with the computing-cylind er 1 usedonly with the upper platform it will be understood that the charts forcylinders 2, 3, and 4 are upon the same money-weight principle and plan,except that they run up to higher weights, but with decreasing pricesper pound, and are used with the lower platform. Thus while the chart,Fig. 8, will only compute to six and one-fourth pounds on the upperplatform the chart for cylinder 2 will compute up to twenty-five, thatof cylinder 3 to fifty, and that of cylinder 4 to seventyfive pounds,all the last three on the lower platform. A general description of thechart shown in Fig. 8 will therefore illustratively suffice for all theothers. It will be seen that at the longitudinal center of the chart aretwo columns of figures. Beginning at the bottom of the chart forcylinders 1 and 3 and at the top for cylinders 2 andv 4, there are inthe right-hand column m ade by th e h orizontal lines divisions orspaces running from "1 to 15, indicating ounces, the next division orspace being one pound. Continuing with the column, it will be seen thatevery other space is devoted to ounces, which are counted with thepounds in the left-hand columns. Thus there will be seen to be (blankspace being left for odd ounces) one pound two ounces, one pound fourounces, one pound six ounces, up to one pound fourteen ounces. Thecolumns continuing in the second spaces above the one pound fourteenounces will be found two pounds and in the second space above that twopounds two ounces, the same arrangement continuing up to six pounds fourounces, or six and one-fourth pounds.

All the charts viz for cylinders 2, 3, and 4-have values independent ofthe abovedescribed weight-divisions, yet each value in money is based ona given price per pound.

On the chart, Fig. 8, only enough. figures are represented scatteredabout to indicate the theory of computing the cost of certain articlesat stated prices per pound. Thus a complete row of figures is seen atthe right of the chart, indicating computations of the prices of givenweights of articles at fi fty cents perpound marked upon theprice-per-pound scale, Fig. 9. Also, a column of figures indicatescomputations at sixteen, eight,and live cents per pound. It will beunderstood that all the spaces in the chart are to be filled withfigures showing the necessary number of cents computed, spaced, andarranged ac cording to the indicated prices per pound. In my twoaforesaid applications the values are in squares longitudinally oppositethe weights; but in the present instance the values in cents arenecessarily arranged in zigzag or staggered order.

The price-per-pound scale 16, Fig. 9, is used in connection with thestraight edge 14, being placed thereon, as seen especially in Fig. 10.Hereinafter I will use the term fixed price-scale to designate thecombined price-perpound scale 16 and the straight edge .14, by which itis carried; but by the term fixed is meant that the several straightedges 14, hearing the scales 16, are each fixed with relation to theirrespective cylinders, although they are each provided with pins 15' andhave pivotal movement and also revolve with the large casing. Theprice-scale 16, Fig. 9, is furnished with figures indicating sumsranging from one and one-fourth cents to fifty cents, there being twohorizontal rows of figures, so as to prevent confusion in reading. Inthe sin'iilar price-per-pound scale used for cylinder 2 the prices willrun from one and one-fourth cents up to forty cents; in that forcylinder 3 from one and one-fourth cents up to thirty cents; in that forcylinder 4 from one and one-fourth ITO cents up to twenty-five cents. Itwill therefore be seen that, beginning with the small cylinder 8 andusing cylinders 1, 2, 3, and 4 and the large casing in which the fourlastnamed cylinders are mounted, I extend the progressive system,described in a lesserdegree in my said earlier application, Serial No.34,793, and further amplified in my later application, Serial No.60,214.

The mode of use of the chart, Fig. 8, in connection with cylinder 1 andits fixed price scale, as shown mounted in Fig. 10, is substantially asdescribed in my former application, Serial No. 60,214. The fixedpricescale (shown as an entirety in Fig. 10) is pivoted at each end inthe head of the casing 30 on pivots 15, bearing lightly uponthe heads,so as to escape contact with the surface of the cylinder. Thus damage tothe chart is prevented, while the pivoted price-scale is brought as nearas practicable to thesurface to prevent confusion in the reading of thecomputations and Weights. A pin 17 limits the movement of each pivotedprice-scale. By using a scale of this class the small cylinder, securedto the scale-beam and graduated longitudinally by divisions at whichvalues of cents and dollars are indicated by a movement of the annularpoise on the cylinder, in connection with a series of largercomputingcylinders independent of the scale-beam,what is above mentionedas a progressive system of computation is provided for. This will beunderstood from the fact that the graduations longitudinally for valueson the small cylinder 8 are at a high rate per unit and at a low orsmall division of units, while the larger cylinder or cylinders(independent of the scale-beam) are graduated circumferentially bydivisions for values of cents and dollars at a lower price per unit andlarger divisions of units. An important feature of my invention,therefore, involves the use of the small cylinder 8, secured to thescale-beam and graduated longitudinally with high-price marks and smalldivisions of units,with, say, cylinder 1 independent of the scale-beamdivided circumferentially by graduations of values at a lower price perunit and a larger division of units. The same will be understood ofcylinders 2, 3, and 4. It will be seen, however, that while what istermed the small money-weight cylinder (here designated by 8) and itschart, Fig. 7, are mounted upon the scale-beam, and therefore form, ineffect, an independent scale-beam,the other cylinders 1, 2, 3, and 4,each having what may be termed a mone weight chart, are detached fromthe sea e-beam and are entirely independent thereof and operativelyconnected to the poise on the scale-beam. Thus the small or money-weightcylinder 8,1nounted upon the scale-beam having thereon prices per poundranging from seventeen cents to one dollar, will not only weigh onepound, but that pound is divided up into small fractions-via,sixty-fourths. T herefore it is evident that the cost of the smallestquantity of a high-priced article maybe readily computed by the use ofthis small moneyweight cylinder 8 and its poise entirely irrespective ofthe use of any other portion of the scale, but that should more than onepound be required to be weighed the same system, of determining how muchmaterial at a given price per pound for a certain sum may be carried outby the use of the cylinder 1,with the upper platform, or, if the weightis beyond the capacity of that cylinder, by either of the othercylinders 2, 3, or 4, the article being weighed upon the lower platform.Should the small cylinder 8 be ever used with cylinders 2, 3, or 4 andthelower platform, each unit on the small cylinder would necessarily bemultiplied by four.

A special feature of improvement entering into my present invention isthat by the use of the small money-weight cylinder 8 the last pound inagiven weight up to seven and one-fourth pounds may be minutely dividedfor the cylinder 1. Thus while the small money-weight cylinder providesa computing-scale wholly independent of the other cylinders it performsthe novel and highly-important function of enabling the last pound oncylinder 1 to be minutely divided. It therefore while independent ofcylinder 1 may be useful if combined with it. Another improvement in mypresent invention upon what is described in my said prior applicationsisin the use of a tare-poise of double the weight of the main poise, thetare-poise being used as a counterweight when going from cylinder 2 tocylinder 3 and from 3 to 4. It will be observed that the tare-beam isgraduated up to fifty pounds, so that this fifty pounds added to thetwenty-five pounds capacity of the main beam or poise increases thecapacity of the scales to seventy-five pounds, which can only be done inmy aforesaid applications, Serial Nos. 34,793 and 60,214, by the use ofcounterweights. Thus the scale described in application Serial No.60,214 is only capable of weighing twentyfive pounds without acounterweight, although its capacity may be increased indefinitely bythe addition of suitable counterweights, which, however, in my presentinvention are rendered unnecessary.

The operation of my invention will be clearly understood from thepreceding description and as to parts not herein specific ally describedby reference to my aforesaid prior applications.

Among the minor features of my present invention may be mentioned thearrangement by which the small money-weight cylinder 3 may be adjustedlongitudinally to relieve binding or take up wear and whereby theannular poise used with said cylinder is supported and guided by rodswhich take the weight of the poise from the cylinder. Furthermore, anovel feature is the employment of an annular poise having the innerdiameter somewhat greater than that of the cylinder, so as to preventdamage to the zhart surrounding the cylinder by friction or thafing.

It is obvious that the special chart herein .lescribed maybe used withthe small moneyweight cylinder 8 and similar charts for weighing ordetermining the value of a larger amount of material at stated priceswith cylinders 1, 2, 3, and 4 or that the system of independent chartsranging from a low fraction of a pound and a low fraction of a cent perunit up to any desired weight and to the price of expensive goods, asspecially described in my application Serial No. 60,214, may be usedupon the internal computingcylinders incorporated in my presentapplication; but the salient, distinctive, and most essential featuresor principles of the invention herein described are in the use of thesmall money-weight cylinder 8 and its charts and other accessories as anindependent scale-beam performing useful functions either independentlyor as an adjunct to other parts of the scale and in the use throughoutof charts of the same general character and description, all of whichare strictly moneyweight charts that is, charts which will indicateexactly what amount of goods at so much per pound may be bought for aspecified sumthis principle involving what is hereinbefore referred toas the "progressive system."

Attention may be called to further differences between the presentinvention and those described in my aforesaid applications. In thiscase, while the values on all of the cylders are based on certain pricesper pound, yet to avoid fractions of cents or the "giv ing or taking offractions in reading the values (as in my two said former applications)the values in the present case are not opposite the weights, (except inisolated cases,) as will be seen from the chart, Fig. 8. In my said twoearlier cases squares are provided by lines designating weights andprices per pound; but while in the present instance no regular squaresare produced the values are necessarily opposite the prices per pound,yet as a dollar is divided into one hundred parts and a pound intosixteen, thirty-two, or sixty-four parts it is evident the divisions ofpounds will as a rule not come opposite the divisions of dollars, yetwhen the weighing is performed, as may be expressed in money, by the useof the device 14.- 16, Fig. '10, the purchaser may readily be informedvery nearly the exact weight, if desired, of the commodity which he maybuy for a certain amount at so much per pound. It is also important tonote that in carrying out my progressive system to its fullest extentthe values on the small money-weight cylinders 8 are made to run inlongitudinal or horizontal lines, while the values on cylinders 1, 2, 3,and 1 and the large casing in which said cylinders are mounted run incircumferential lines.

The knife-blades 18, Figs. 1, 3, and 4, for the purpose of allowingrepair or substitution in the event of wear are removably inserted inslots formed in lugs 19, projecting from the sides of the fulcrum end ofthe beam.

It is evident that modifications of constructions and combinationsherein described may be made by the skill'ul mechanic without departingfrom my invention, and such departures from what is herein set forth notinvolving invention I consider as within the terms of my claims.

Having thus described my invention, I claim v 1. In a scale, thecombination withv a ful- .crum-head, of a beam, a poise adapted totraverse the beam, rotatable computing mechanism independent of said.beam but arranged to be operatively connected to its poise a shaftsecured to the fulcrum-head, and a rotatable computing-cylinder on theshaft and provided with a poise, substan'tially as set forth.

2 In a scale, weighing members including a beam and a poise, combinedwith rotatable computing mechanism independent of said beam but adaptedto be operatively connected to its poise a shaft secured to thefulcrum-head; a rotatable computiiigcylinder on said shaft and providedwith a poise; and means whereby said rotatable computingcylinder may beemployed independently of the'lirst-namedrotatable computing mechanism,or used therewith, substantially as set forth.

In a scale, weighing members including a beam and a poise, combined withrotatable computing mechanism detached from said beam and independentthereof but adapted to be operatively connected with its poise; a shaftsecured to the fulcrum-head of said beam, and a supplemental computingmechanism consisting of a rotating cylinder journaled on said shaft andcarrying a poise; said supplemental mechanism being adapted to weigh andcompute lesser weight and higher value per unit, and the other rotarycomputing mechanism greater weight and lesser value per unit,substantially as set forth.

4. In a scale, weighing members including a beam and a poise, combinedwith rotatable computing mechanism consisting of cylinders detached.from said beam and independent thereof but adapted. to be operativelyconnected with its poise and a supplemental computing mechanismconsisting of a rotata- ITO ble cylinder secured to said beam andcarrying a poise; said first-named rotatable computing-cylinder beinggraduated by divisions for values of cents and dollars at a certainprice per unit and for certain divisions of units, and the supplementalcomputing-cylinder being graduated for values at a higher rate per unitand at a lower or smaller divi sion of units, substantially as setforth.

5. In a scale, weighing members including a beam and a poise, combinedwith rotatable computing mechanism consisting of cylinders detached fromsaid beam and independent thereof but adapted to be operativelyconnected with its poise; anda supplemental computing mechanismconsisting of a rotatable cylinder secured to said beam and carrying apoise; said first-named rotatable computing-cylinders being graduatedcircumferentially by divisions for values of cents and dollars at acertain price per unit and for certain divisions of units, and thesupplemental computin g-cylinder being graduated longitudinally forvalues at a higher rate per unit and at a lower or smaller division ofunits, substantially as set forth.

6. In. a scale, the combination of a beam and a poise; an upper and alower weighing platform rotating computing mechanism independent of saidbeam but adapted to be operatively connected to its poise; a rotatablecomputing-cylinder secured to said beam and provided with a poise, andadapted to be used independently of the aforesaid computing mechanismwith the upper platform, or as an adjunct thereto with the upper or thelower platform, substantially as and for the purposes set forth.

7. In a scale, weighingmembers including a beam and a poise, and anupper and a lower platform for lighter and heavier weights respectively,combined with rotatable computing mechanism detached from said beam andindependent thereof but adapted to be operatively connected with itspoise; and a rotatable computing-cylinder secured to said beam andprovided with a poise; whereby said rotatable computing-cylinder may beused with the upper platform independently of the first-named rotatingcomputing mechanism, or used therewith and with either the upper or thelower platform, and computations of two independent sets of computingmechanism may be conveniently added, substantially as and for thepurposes set forth.

8. In a scale, the combination with a beam having a stud-axle secured tothe fulcrumhead of said beam and parallel therewith, of acomputing-cylinder revolubly mounted upon said axle and carrying anannular poise, and rods for guiding and holding said poise againstindependent rotation, substantially as set forth.

9. In a scale, the combination with a main weighing-beam having afulcrum-head 1O rigidly attached thereto, of an axle secured to thefulcrum-head and parallel with but detached from the beam, acomputing-cylinder rotatably mounted upon said axle, and

a poise on said cylinder, said axle being longitudinally adjustable inthe fulcrum-head with respect to the beam, substantially as set forth.

10. In a scale, the combination with a beam and an axle secured theretoparallel therewith, of a computing-cylinder rotatably mounted upon saidaxle, an annular poise thereon having an internal diameter greater thanthe exterior diameter of the cylinder and its chart, and guide-rodssecured to the cylinder and parallel to its axis for supporting andpreventing independent rotation of the poise and prevent friction on thecylinder, substantially as set forth.

11. In a scale, the combination. of a rotatable computing-cylinder and aprice-scale for use with said cylinder, said price-scale be ing pivotedat its ends and near one of its edges to supports beyond the peripheralsurface of said cylinder, the free edge of said price-scale beingadapted, by the force of gravity, to rest adj acently to the surface ofthe cylinder, substantially as set forth.

12. In a scale, the combination of a casing or support, a rotatablecomputing-cylinder mounted therein and having a head at each end, and aprice-scale pivoted in said casing or support so that the free edge ofsaid price scale shall bear upon the heads of the cylinder and escapecontact with the cylinder proper, substantially as set forth.

13. In a scale, the combination of a casing or support, a rotatablecomputing-eylinder mounted therein and having a head at each end, aprice-scale pivoted in said casing or support so that the free edge ofsaid pricescale shall bear upon the heads of the cylinder and escapecontact with the cylinder proper, and a pin for limiting the movement ofsaid pivoted price-scale, substantially as set forth.

14. In a scale, weighing members including a beam and a poise, combinedwith rotatable computing mechanism consisting of cylinders detached fromsaid beam and independent thereof but adapted to be operativelyconnected with its poise; and a supplemental computing mechanismconsisting of a rotatable cylinder secured to said beam and carrying apoise, substantially as set forth.

15. In a scale, weighing members including a beam attached to ahilcrumdiead and a poise, combined with rotatable computing mechanismconsisting of a cylinder detached from said beam and independent thereofbut adapted to be operatively connected at will with its poise; and asupplemental computlng mechanism consisting of a rotatable cylindersecured to the fulcrum-head independl rounding the coinputing-oylinde1,substanl ently of said beam and carrying a poise, sul tially as setforth. 1o

stantially as set forth. In testimony whereof I hereunto set my 16. In ascale, the combination of a lulhand and seal.

erurn-head, a main beam rigidly attached MARK A.1)EES. [n 8.]

thereto, a shaft adjustably supported by the lVitnesses:

fulcrum-head, a rotatable eo1nputing-eylin I W. E. GRAYSON,

der mounted on said shaft, and a poise surl A. STANDING.

